I'm facing the same issues as OP. Same name with the funny character and all. First benchmark I ran I got 103k score, then a 2nd one I got around 126k. This all on performance mode.
I got my S8+ from Amazon, Samsung was the seller, box came with the seal unbroken, I didn't suspect anything up until now. Antutu Officer doesn't recognize the device (Unknown).

EDIT: Just done another one after a restart and I got 146k score. Oddly enough, UX Strategy Games and UX I/O performance scored higher than the listed S8+, not by much though.

Did anyone's box have a safety seal? Mine and my wife's phone did not. We purchased new from Best Buy. Had all the clear application stickers on the device itself and all the wires, headphones and charging bricks have the clear protection. How do you also find out if a device is a refurb?

Mine had the seal and it was intact, good sign. I honestly don't know what could lead to the absence of a seal altogether. I'm fairly sure that when the phones go out to the market they always have one.

On other news, I ran Antutu one more time, under the same conditions and got desired results. Keep in mind this is my 4th test: